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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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-Name Accounting Standards Codification

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-SubTopic 20

-Section 50

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Acquisitions (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Sep. 09, 2013	Apr. 02, 2012
Discera, Inc. [Member]
Business Acquisition [Line Items]
Goodwill	$ 2.6
Short-term debt		(1.1)
Total purchase price		7.2
PhaseLink Acquisition [Member]
Business Acquisition [Line Items]
Total purchase price			$ 19.7